putting biden on the ticket was politically necessary to balance the utter inexperience of Teh One. but now that the electorate has swallowed the obama campaign's line of crap, his constant insane statements make him more baggage than he is worth.
and axelrod probably remembers that she got more primary votes than he did in 2008, which is something that will have to be dealt with at some point. a large portion of the hillaryites still have their panties in a wad over michigan and florida.